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William Optics

Items 1 - 25 of 28

William Optics WhiteCat 51 APO f/4.9 Refracting Telescope - Limited Edition - L-RC51W

SKU: WYO-L-RC51W
  • Optical Design: Refractor
  • Telescope Aperture: 51mm (2")
  • Focal Ratio: f/4.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
$698.00

William Optics Gran Turismo 81 Triplet APO Refractor w/ Dual Dovetail - Gold - A-F81GTIIIGD

SKU: WYO-A-F81GTIII-GD
  • Optical Design: Refractor
  • Telescope Aperture: 81mm (3.19")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,198.00

William Optics Gran Turismo 81 Triplet APO Refractor w/ Dual Dovetail - Red - A-F81GTIIIRD

SKU: WYO-A-F81GTIII-RD
  • Optical Design: Refractor
  • Telescope Aperture: 81mm (3.19")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,198.00

William Optics 73mm f/5.9 ZenithStar FPL53 Doublet APO Refractor w/ Dual Dovetail Plate - Gold - A-Z73IIGD

SKU: WYO-A-Z73II-GD
  • Optical Design: Refractor
  • Telescope Aperture: 73mm (2.9")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$618.00

William Optics 73mm f/5.9 ZenithStar FPL53 Doublet APO Refractor w/ Dual Dovetail Plate - Red - A-Z73IIRD

SKU: WYO-A-Z73II-RD
  • Optical Design: Refractor
  • Telescope Aperture: 73mm (2.9")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$618.00

William Optics ZenithStar 81 APO Doublet Refractor - Red - A-Z81RD

SKU: WYO-A-Z81-RD
  • Optical Design: Refractor
  • Telescope Aperture: 81mm (3.19")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$798.00

William Optics ZenithStar 81 APO Doublet Refractor - Gold - A-Z81GD

SKU: WYO-A-Z81-GD
  • Optical Design: Refractor
  • Telescope Aperture: 81mm (3.19")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$798.00

William Optics Zenithstar 103 Imaging APO Refractor with Bahtinov Mask Cover - Gold - A-Z103GD

SKU: WYO-A-Z103-GD
  • Optical Design: Refractor
  • Telescope Aperture: 103mm (4.06")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
$1,198.00

William Optics Zenithstar 103 Imaging APO Refractor with Bahtinov Mask Cover - Red - A-Z103RD

SKU: WYO-A-Z103-RD
  • Optical Design: Refractor
  • Telescope Aperture: 103mm (4.06")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
$1,198.00

William Optics Star71 Four Element f/4.9 Imaging Refractor w/2.5" Focuser - A-WO71-II

SKU: WYO-A-WO71-II
  • Optical Design: Refractor
  • Telescope Aperture: 71mm (2.8")
  • Focal Ratio: f/4.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,198.00
William Optics GT71 f/5.9 20th Anniversary Gold Triplet Refractor

William Optics GT71 f/5.9 Gold Triplet APO Refractor - 20th Anniversary Edition - A-F71GT-VP20A

SKU: WYO-A-F71GT-VP20A
  • Optical Design: Refractor
  • Telescope Aperture: 71mm (2.8")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$958.00
William Optics 71 mm f/4.9 Star Imaging Refractor - Blue Edition with Soft Case

William Optics Star71 Four Element f/4.9 Imaging Refractor w/2.5" Focuser - Limited Blue Edition - A-WO71-IIBU

SKU: WYO-A-WO71-IIBU
  • Optical Design: Refractor
  • Telescope Aperture: 71mm (2.8")
  • Focal Ratio: f/4.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,198.00

William Optics Zenithstar 61 mm Doublet Refractor Telescope - Blue Edition - A-Z61BU

SKU: WYO-A-Z61BU
  • Optical Design: Refractor
  • Telescope Aperture: 61mm (2.4")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$478.00

William Optics ZenithStar 61 mm f/5.9 APO Doublet Refractor Telescope - Red Edition - A-Z61RD

SKU: WYO-A-Z61RD
  • Optical Design: Refractor
  • Telescope Aperture: 61mm (2.4")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
Free shipping Free shipping
$478.00

William Optics ZenithStar 61 mm f/5.9 APO Doublet Refractor Telescope - Gold Edition - A-Z61GD

SKU: WYO-A-Z61GD
  • Optical Design: Refractor
  • Telescope Aperture: 61mm (2.4")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
Free shipping Free shipping
$478.00

William Optics Zenithstar 103 Imaging APO Refractor with Bahtinov Mask Cover - Blue - A-Z103BU

SKU: WYO-A-Z103-BU
  • Optical Design: Refractor
  • Telescope Aperture: 103mm (4.06")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,198.00
William Optics Gran Turismo 153 Triplet APO Refractor

William Optics Gran Turismo 153 Triplet APO Refractor - A-F153GT-FT

SKU: WYO-A-F153GT-FT
  • Optical Design: Refractor
  • Telescope Aperture: 153mm (6.02")
  • Focal Ratio: f/7.8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$5,998.00
William Optics GT71 f/5.9 FPL-53 Triplet Refractor with Cover

William Optics GT71 f/5.9 FPL-53 Triplet Refractor w/ Dual Dovetail Plate - A-F71GTII

SKU: WYO-A-F71GTII
  • Optical Design: Refractor
  • Telescope Aperture: 71mm (2.8")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$828.00

William Optics 73mm f/5.9 ZenithStar FPL53 Doublet APO Refractor w/ Dual Dovetail Plate - Blue - A-Z73IIBU

SKU: WYO-A-Z73II-BU
  • Optical Design: Refractor
  • Telescope Aperture: 73mm (2.9")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$618.00

William Optics GT71 f/5.9 FPL-53 Triplet APO Refractor w/Flat6AIII Field Flattener & Dual Side Dovetail - A-F71GTII-AP

SKU: WYO-A-F71GTII-AP
  • Optical Design: Refractor
  • Telescope Aperture: 71mm (2.8")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$938.00

William Optics Gran Turismo 81 Triplet APO Refractor w/ Dual Dovetail - Blue - A-F81GTIIIBU

SKU: WYO-A-F81GTIII-BU
  • Optical Design: Refractor
  • Telescope Aperture: 81mm (3.19")
  • Focal Ratio: f/5.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,198.00

William Optics ZenithStar 126 APO Refractor w/ 3.3" Focuser & Slide Base Handle - A-Z126II-RP33

SKU: WYO-A-Z126II-RP33
  • Optical Design: Refractor
  • Telescope Aperture: 126mm (4.96")
  • Focal Ratio: f/7.7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,198.00

William Optics Fluorostar 132 Refractor w/ 3.3" Rack & Pinion Focuser & 3" Rotolock - A-F132II-RP33R

SKU: WYO-A-F132II-RP33RII
  • Optical Design: Refractor
  • Telescope Aperture: 132mm (5.20")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$3,698.00

William Optics 132 mm FLT f/7 APO Triplet Refractor w/ FT Focuser, Roto Lock, & Slide Base Handle - A-F132II-FTR

SKU: WYO-A-F132II-FTRII
  • Optical Design: Refractor
  • Telescope Aperture: 132mm (5.20")
  • Focal Ratio: f/7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$4,598.00

William Optics Gran Turismo 102 Triplet Refractor w/ Bahtinov Mask Cover - Gold - A-F102GTS-RP33

SKU: WYO-A-F102GTS-RP33
  • Optical Design: Refractor
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/6.9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
Free shipping Free shipping
$1,998.00

William Optics provides quality refractors, mounts, and accessories such as eyepieces, diagonals, and mounting hardware for amateur astronomers around the world. The CEO of the company is David Yang, an avid amateur astronomer and bird-watcher who feels strongly about offering premium optics to everyone with an interest in astronomy or nature, and not just to those with plenty of cash to spare.

When William Yang was a child, he thumbed through the pages of Sky & Telescope magazine and gazed at the beautiful images of our universe laid before him. His family could not afford to buy him a telescope, but he could dream of a day when he would be able to photograph galaxies and nebulae like the astrophotographers he admired so much. In 1986, David saved up all summer to buy a telescope to watch Halley's Comet, but before that he tried his hand at building his own telescopes with whatever supplies he could find; he even "borrowed" his grandmother's eyeglasses to use as the lenses for his first refractor!

In 1996, David opened William Optics in Taiwan. Four years later, in 2000, William Optics USA began by offering their break-out 80mm Megrez refractor to consumers in the United States. The quality, as well as the price, was amazing, and before long, William Optics had positioned themselves as one of the world leaders in fast, highly portable quality refractors.

William Optics also makes some great telescope accessories. Their WO Diagonals are celebrated the world over for their machining and optical quality, and their Ultra Wide Angle (UWA) and Super Wide Angle (SWA) eyepieces, with their unusual jet-black insertion barrels, have come to be known for their quality, but at an affordable price. We think William Yang has achieved what he set out to do; providing "More Quality for Less Money"; and we look forward to what he plans to do next!

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